From d94ea3f6d21e8b4398285516cc307c81d7374ec9 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 6 Jun 2013 14:11:38 +0100
Subject: [PATCH] irqchip: Return -EPERM for reserved IRQs

The irqdomain core will report a log message for any attempted map call
that fails unless the error code is -EPERM. This patch changes the
Versatile irq controller drivers to use -EPERM because it is normal for
a subset of the IRQ inputs to be marked as reserved on the various
Versatile platforms.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/irqchip/irq-versatile-fpga.c | 2 +-
 drivers/irqchip/irq-vic.c            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 065b7a31a478..47a52ab580d8 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -119,7 +119,7 @@ static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq,
 
 	/* Skip invalid IRQs, only register handlers for the real ones */
 	if (!(f->valid & BIT(hwirq)))
-		return -ENOTSUPP;
+		return -EPERM;
 	irq_set_chip_data(irq, f);
 	irq_set_chip_and_handler(irq, &f->chip,
 				handle_level_irq);
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 884d11c7355f..2bbb00404cf5 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -197,7 +197,7 @@ static int vic_irqdomain_map(struct irq_domain *d, unsigned int irq,
 
 	/* Skip invalid IRQs, only register handlers for the real ones */
 	if (!(v->valid_sources & (1 << hwirq)))
-		return -ENOTSUPP;
+		return -EPERM;
 	irq_set_chip_and_handler(irq, &vic_chip, handle_level_irq);
 	irq_set_chip_data(irq, v->base);
 	set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);